PDC Decanter Centrifuge For Waste Sludge Wastewater Treatment Plant Equipment

Description

The main equipment of sludge dewatering complete system is decanter. Decanter is the machine of separating suspending liquid on centrifugal sedimentation. With the centrifuge, it is possible to separate the particle from suspending liquid, whose equivalent diameter is bigger than 0.003mm,solid-liquid weight ratio isles than 10%, volume ratio is less than 70%, difference in specific gravity is bigger than 0.059/cm3.

Specification

Working Procedure

High dryness decanter can use limit space to fit together different stages of separation.

Mixing and Accelerating Stage

Sludge and chemical mixes in the specially designed feed chamber and accelerates together. This prepares the sludge for best separation.

Clarifying Stage

The flocculants sediments inside the bowl under centrifugal force, the clear liquid flows out of the weir an the end of the bowl.

Pressing Stage

Conveyor pushes the solid toward the discharge end. The sludge is further pressed by centrifugal force and the water comes out of the small holes of the sludge.

Double-direction Pressing Stage

In the conical part of the bowl wall, the sludge is pressed by specially designed double direction pressing effect. The specially designed conveyor produces axial pressing force and water comes out of the tiny holes of the sludge.

Control the Staying Time of Solid

In order to achieve best dewatering effect when flow rate or character of sludge changes, the solid content inside the bowl should be continuously controlled.

This is controlled by the drive system of the conveyor. The drive system of the conveyor can measure real-time the solid content inside the bowl and adjust automatically, solid discharge torque automatically compensated.

Drive Technology

The reliable and excellent operation needs good cooperation of bowl drive and conveyor drive. Shanghai Centrifuge Institute researches good drive combination, which can be recommended as best design to suit different applications.

Bowl Drive System

Alternatives includes:

• AC Motor + Frequency Converter
• AC Motor + Hydraulic Coupling
• Other Special Ways

Conveyor Drive System

Alternatives includes:

• Frequency converter back or forward drive
• DVF multi-level planet control
• Hydraulic motor with individual hydraulic pump
• Other Special Ways

Drive combine example

• AC Motor + Hydraulic Coupling
• Hydraulic motor with individual hydraulic pump
• AC Motor Frequency Converter
• AC trig Motor Frequency Converter
• AC Frequency equipment

Basic Information

Zhangjiagang City Peony Machinery Co., Ltd., founded as a special producing enterprise of separating equipment in 2008, is the well-known manufacturer and service provider of separation and filtration in China. Peony dedicated to solving the solid-liquid, liquid-liquid separation problems for clients all over the world and providing separating and filtering mechanical products with convenient operation, high efficiency, reliable quality, and excellent service worldwide. Being a group corporation, Peony has 3 producing bases in China - Zhangjiagang, Nanjing, and Hangzhou city.

Products

As the professional supplier of separating and filtering equipment, we produce basket centrifuges, decanters, and disc separators starch product line, and sell the auxiliary equipment such as clarify equipment, filters, pumps, etc. These 25 series of more than 150 products are self-development of Peony and have attained national patent. Those products and relevant auxiliary equipment are widely used in chemical, petroleum, pharmacy, mining, food, beverage industry, and environmental protection.

We own various kinds of inspection and testing facilities with a value over USD10million, now,16 testing tables,6920 gear testing center, X-ray detecting machine, high-speed dynamic balancing machine, ultrasonic flaw detection machines, etc, we are equipped with complete testing, inspection, analysis control system, advanced testing machines and simulative working condition test table and automatic control testing system, which guarantees our new product research, processing validation, and quality.

We have strongly equipped the robust and precise processing machines from Germany, Italy, England, and our domestic famous brand, here, I'd like to list several of them for your reference.
200 Numerical Control Boring and Milling Machine TK6920
160 Numerical Control Boring and Milling Machine TK6916
Italian PAMA Numerical Control Boring and Milling Machine
80T CNC Lathe
40 T CNC Lathe
2.5m Merry Go Round Machine C525E
Z100 Radial Drill
Numerical Controlled Vertical Milling Machine
Underwater Plasma Cutting Center
CNC Machining Center
 

We harvested great achievement these years, and turnover reaches to 380million RMB in
the year 2013, and we expect to carry out 500million RMB in 2015.

Welcome all who are engaged in the separation and filtration to work with us, and we are also looking for qualified world wide agents to provide better service and deep marketing.

Worldwide Network

Our products have spread all over the world and are applied over 35 countries and regions, for example, America, Germany, Italy, Sweden, Canada, Singapore, Australia, Brazil, Russia, India, Middle East, and Southeast Asia, etc. To provide flexible and qualified technical service to resolve any maintenance issue in the shortest time possible, now we have established agents in many countries such as Brazil, Colombia, Latin America, Bangladesh, Southeast Asia, etc.

Society Reward

Peony is devoting into the charity activity, we are subsidizing some poor students to finish the school and are trying to set up some primary to feedback the society, hereby, we appeal to all people to enter into the charity activity, technical innovation changes the world, love embraces the world!